[PATCH] phy: freescale: fsl-samsung-hdmi: Convert to platform remove callback returning void

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Tue Apr 9 09:15:06 PDT 2024


The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.

To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
---
Hello,

the driver patched here doesn't exist yet in the main line, it currently
is added in commit 6ad082bee902 available in
git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy.git next .

Best regards
Uwe

 drivers/phy/freescale/phy-fsl-samsung-hdmi.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/phy/freescale/phy-fsl-samsung-hdmi.c b/drivers/phy/freescale/phy-fsl-samsung-hdmi.c
index 89e2c01f2ccf..9048cdc760c2 100644
--- a/drivers/phy/freescale/phy-fsl-samsung-hdmi.c
+++ b/drivers/phy/freescale/phy-fsl-samsung-hdmi.c
@@ -657,11 +657,9 @@ static int fsl_samsung_hdmi_phy_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int fsl_samsung_hdmi_phy_remove(struct platform_device *pdev)
+static void fsl_samsung_hdmi_phy_remove(struct platform_device *pdev)
 {
 	of_clk_del_provider(pdev->dev.of_node);
-
-	return 0;
 }
 
 static int __maybe_unused fsl_samsung_hdmi_phy_suspend(struct device *dev)
@@ -706,7 +704,7 @@ MODULE_DEVICE_TABLE(of, fsl_samsung_hdmi_phy_of_match);
 
 static struct platform_driver fsl_samsung_hdmi_phy_driver = {
 	.probe  = fsl_samsung_hdmi_phy_probe,
-	.remove = fsl_samsung_hdmi_phy_remove,
+	.remove_new = fsl_samsung_hdmi_phy_remove,
 	.driver = {
 		.name = "fsl-samsung-hdmi-phy",
 		.of_match_table = fsl_samsung_hdmi_phy_of_match,

base-commit: a053fd3ca5d1b927a8655f239c84b0d790218fda
-- 
2.43.0




More information about the linux-phy mailing list